Observatory · observe first

Follow the allocation change

Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.

Historical time machine

Historical observation

20182026

Universe›Information Technology›Electronic Equipment & Instruments›Electronic Equipment & Instruments

1 · Sector

Weight and 12M allocation change

Information Technology33.6%+3.90 pp Consumer Discretionary13.1%+1.27 pp Financials12.6%+0.85 pp Consumer Staples6.8%+0.07 pp Utilities2.6%-0.07 pp Communication Services2.5%-0.41 pp Real Estate2.3%-0.46 pp Materials2.3%-0.48 pp Industrials9.6%-0.62 pp Energy2.5%-0.66 pp Health Care12.2%-3.40 pp

2 · Industry

Inside Information Technology

Semiconductors11.08%+7.06 pp Systems Software7.30%-1.93 pp Technology Hardware, Storage & Peripherals8.15%-0.66 pp Application Software3.47%-0.48 pp IT Consulting & Other Services1.26%-0.15 pp Semiconductor Materials & Equipment0.62%+0.12 pp Electronic Components0.19%+0.07 pp Electronic Equipment & Instruments0.30%-0.04 pp Electronic Manufacturing Services0.14%-0.04 pp Technology Distributors0.06%-0.03 pp Internet Services & Infrastructure0.15%+0.03 pp Communications Equipment0.83%-0.03 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.30%-0.042 pp

Concentrated

Most of this industry's losses came from a few companies.

View all contributions →

Electronic Equipment & Instruments · weight

0.30%

Industry change · 12M

-0.04 pp

Electronic Equipment & Instruments · contribution

-0.042 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2025 · sorted by absolute contribution to 12-month change

Company	Country	Market cap	Universe weight	3M contribution	12M contribution	12M price return	Above 6M weight average
Roper Technologies → ROP	United States	$61.7bn	0.137%	+0.002 pp	-0.033 pp	+7.8%	Yes
Keysight Technologies → KEYS	United States	$30.9bn	0.069%	+0.008 pp	-0.011 pp	+16.4%	Yes
Zebra Technologies → ZBRA	United States	$20.2bn	0.045%	-0.001 pp	+0.008 pp	+63.6%	No
Teledyne Technologies → TDY	United States	$23.8bn	0.053%	+0.003 pp	-0.006 pp	+22.2%	Yes

Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.